refactor: migrate consumers off rustfs-common heal/scanner shims (#6623)

* refactor(ecstore): import heal/scanner contracts crates directly (backlog#1843)

* refactor(heal): import heal/scanner contracts crates directly (backlog#1843)

* refactor(lifecycle): import heal/scanner contracts crates directly (backlog#1843)

* refactor(obs): import heal/scanner contracts crates directly (backlog#1843)

* refactor(protos): import heal/scanner contracts crates directly (backlog#1843)

* refactor(scanner): import heal/scanner contracts crates directly (backlog#1843)

* refactor(rustfs): import heal/scanner contracts crates directly (backlog#1843)

crates/obs/Cargo.toml

@@ -105,6 +105,8 @@ workspace = true
 hotpath.workspace = true
 rustfs-audit = { workspace = true }
 rustfs-common = { workspace = true }
+rustfs-heal-contracts = { workspace = true }
+rustfs-scanner-contracts = { workspace = true }
 rustfs-config = { workspace = true, features = ["observability"] }
 # NOTE: This dependency on rustfs-ecstore is a known architectural limitation.
 # The obs crate imports types from ecstore for metrics collection.

crates/obs/src/metrics/collectors/scanner.rs

@@ -493,7 +493,7 @@ mod tests {
     use super::*;
     use crate::metrics::report::report_metrics;
     use metrics_util::debugging::DebuggingRecorder;
-    use rustfs_common::metrics::{Metric, Metrics};
+    use rustfs_scanner_contracts::metrics::{Metric, Metrics};
 
     fn prometheus_counter_name(name: &str) -> String {
         if name.ends_with("_total") {

crates/obs/src/metrics/stats_collector.rs

@@ -37,16 +37,16 @@ use crate::metrics::{
 };
 use crate::node_identity::current_local_node_identity;
 use jiff::Timestamp;
-use rustfs_common::heal_channel::HealScanMode;
-use rustfs_common::metrics::{
-    ScannerActiveBucketDriveSnapshot, ScannerBucketDriveResultSnapshot, ScannerMetricsReport, ScannerSourceWorkSnapshot,
-    global_metrics,
-};
+use rustfs_heal_contracts::heal_channel::HealScanMode;
 use rustfs_io_metrics::internode_metrics::global_internode_metrics;
 use rustfs_io_metrics::{
     ProcessResourceSnapshot, ProcessSampler, ProcessStatusSnapshot, ProcessSystemSnapshot, s3_op_metrics_snapshot,
     snapshot_process_resource_and_system, snapshot_process_resource_and_system_with,
 };
+use rustfs_scanner_contracts::metrics::{
+    ScannerActiveBucketDriveSnapshot, ScannerBucketDriveResultSnapshot, ScannerMetricsReport, ScannerSourceWorkSnapshot,
+    global_metrics,
+};
 use std::{
     collections::{HashMap, HashSet},
     sync::Arc,
@@ -1667,7 +1667,7 @@ pub async fn collect_compression_cluster_stats() -> Option<CompressionClusterSta
 #[cfg(test)]
 mod tests {
     use super::*;
-    use rustfs_common::metrics::ScannerSourceWorkSnapshot;
+    use rustfs_scanner_contracts::metrics::ScannerSourceWorkSnapshot;
     use std::io::{Read, Write};
     use std::net::{Shutdown, TcpListener, TcpStream};
     use std::thread;
@@ -2122,7 +2122,7 @@ mod tests {
     #[test]
     fn ilm_detail_stats_keep_expiry_and_transition_results_separate() {
         let report = ScannerMetricsReport {
-            lifecycle_expiry: rustfs_common::metrics::ScannerLifecycleExpirySnapshot {
+            lifecycle_expiry: rustfs_scanner_contracts::metrics::ScannerLifecycleExpirySnapshot {
                 current_queued: 2,
                 current_active: 1,
                 scanner_queued: 10,
@@ -2130,7 +2130,7 @@ mod tests {
                 delete_failed: 4,
                 ..Default::default()
             },
-            lifecycle_transition: rustfs_common::metrics::ScannerLifecycleTransitionSnapshot {
+            lifecycle_transition: rustfs_scanner_contracts::metrics::ScannerLifecycleTransitionSnapshot {
                 current_queued: 5,
                 current_active: 6,
                 queue_full: 7,